The cast and crew of the epic World War II movie Dunkirk made a stop in the big apple for its US premiere on Tuesday evening.

But it was Harry Styles who took centre stage as he posed for pictures on the red carpet.

Directed by Christopher Nolan, the movie is a visual spectacle recounting the battle of Dunkirk, in which 400,000 British, French and Belgian soldiers were trapped on French beaches by German forces.

Harry, who looked as handsome as eve in head-to-toe black, previously admitted he had no idea what part he was auditioning for when he tried out for Dunkirk - his acting debut.

The singer cut a smart figure (Image: Splash)

He turned up in an all-black outfit (Image: FilmMagic)

Harry plays Alex, one of the junior soldiers desperately trying to get home as the enemy forces close in, but did not know that when he first read for the part with the film's eventual star, Fionn Whitehead.

He told the Press Association: "We auditioned together and I was sitting in a cold, lonely room and Fionn came in from a set of something he was working on and there was one other person in there.

The film is out 21 July (Image: WENN)

(Image: WireImage)

"You had no idea what part you were auditioning for. We didn't know how many parts there were and they kind of round robin-ed us a little bit, so we did everyone with everyone."

As a newcomer to film sets, Harry said his first day on location in Dunkirk with director Nolan was "pretty overwhelming".

Speaking of his acting career, he said: "I might be one and done. I think I'm one and done, to be honest. I think so" (Image: Rex)

(Image: Rex)

He added: "I think as much as you can imagine what something like that is going to look like, people don't make that.

"I don't know in what other situation someone gets to do what he did so he was pretty amazing to be around.

"You are kind of in awe of it a lot of the time, just continuously during the film.

"At times the tide would go out and you could see ruins of some of the old boats that were out there and it was moments like that when everyone was aware of how special the place that we were was."

The One Direction star's Hollywood debut has been highly anticipated, with fans of the singer flocking to the film's locations to see him in action, but he is not sure he will act again.

He said: "I might be one and done. I think I'm one and done, to be honest. I think so."